Automatic weighing-machine



E. H. CRAIG. AUTOMATIC WEIGHING MACHINE.

APPLICATION FILED JULY 20. I920.

Patentd Aug. 2,1921.

2 SHEETSSHEET 1- gwuenow Eff. L ra/ :9, y

PATENT OFFICE.

EDGAR H. CRAIG, OF ROCKDALE, TENNESSEE.

AUTOMATIC. WEIGHING-MACHINE.

Application filcd Jui 2o,

Toall'whom it may concern." I

Be it known that I, EDGAR H. CRAIG, a citizen of the United States,residing at Rockdale, in the county of Maury and State of Tennessee,have invented certain new and useful Improvements in AutomaticWeighing-Machines; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it ap rtains to make and use thesame.

is invention relates to an automatic weighing machine and has for itsobject to provide a mechanism which will be comparatively inexpensive tomanufacture and more efficient in action than those which have beenheretofore proposed. j

With theseand otherobjlects in view the invention consists in the noveldetails of construction andcombina'tions of parts more fully hereinafterdisclosed and particularly pointed out in the claims. I

Referring to the accompanying drawings forming a part of thisspecification in which like numerals designate like parts in all theviews:

Figure'l is'a side elevational view partly broken awa of a machine madein accordance with t is invention;

2 is a fragmenta sectional view taken'on the line2- 2 of 'ig. 1 lookingin the direction. of the arrows; u

Fig. 3 isa sectional view through the bins and mainbody portion of themachine illustrating the construction of its interior; and Fig.4 is asectional view taken through the larger diameter of the associatedparts'of the machineflooking toward the spoutthereof. I 1 and 1 indicateany suitable bins or contai'ners for merchandise or other finely dividedmaterial such as coffee, sugar, rice, peas, etc; 2 and 2 openings orwindows K therein covered with. transparent material; 45

and 3' a base piece on' which said bins rest. Each of'the bins areprovided with an opening or delivery orifice 4 and 4 controlled by valvemembers 5 and 5 respectively sliding through openings in said bas'epiece 3 and provided with the coil springs 6 and. 6 to maintain saidvalve members in their closed positions. Said valve members5 and 5 areprovidedwith holes 7 and 7 adaptedto register with their correspondingholes 4 and 4 when said members are pulled out against Specification ofLetters Patent.

scale disk and -Patented Aug. 2, 1921 1920. Serial NO. 397,666.

the compressions of their springs 6 and 6 When said members are thuspulled outtheir notches 8 and 8 will be engaged by the upper ends 9 and9 of the levers l0 and 10 p voted at 11 and 11 respectively, andprovided with toes 12 and 12 all as will be clear from Figs. land 2 ofthe drawings. Said end 9 will thus hold the hole 7 of its valve 5 inregistry with its corresponding hole 4 of the bin 1, until saidend 9 isdisengaged from its corresponding notch 8, whereupon the spring ,6 willcause the said valve 5 to be drawn inwardly or into the positionillustrated in Fig. 2 and thus to brlng its hole 7 out of registry withits corresponding hole 4:. The main body portion 13 of the machine ishollowed out to form the space 1 1, and is provided with the ears orlugs 15 having the perforations 16 4 through which bolts or otherfastenings may be passed in order to secure the machine on any suitablewall or support. Said opening or space 14: has connected therewith thespout or delivery 17 which is tapered as shown and whichfmayconveniently enter a bag or other container into which the mer chandiseis to be delivered. Closing the opening 14 is the disk like member 20provided with the tubular member 21' on which n it is loosely pivotedand through which passes the diamond shaped or knife edged member 22 asshown. Said member 22conveniently screws or otherwise secures itselfinto the back portion 23 of the frame 13 and thus holds the disk 20 inplace. The said frame 13 is cut away as at 24 to accommodate the disk 20so that the outer surface 25 of said disk may lieflush with the outersurface 26 of said frame 13, while said disk may be freely rotatedindependently of the tubular member 21 of the knife edged member'22, allas will be readily understood from Figs. 1, 3, and 4. Also pivoted onthe tubular member 21 and therefore rotating with the said disk 20 isthe double cup device or weigher 27 provided with the receptacles 28 and28 oppositely disposed as illustrated. Through said device 27, betweenthe cups, passes the diamond shaped member 29 which screws into the disk20 as illustrated and through the other end 30 of said device 27 passesthe similar diamond shaped or knife edged member 31' which likewisescrews in the said disk20 as shown. When the disk is inone position oneof the cups 28 will register with the hole 4 and its cone shapeddelivery spout 32 as shown, while after the disk has made a revolutionthrough 180, the other cup 28 will come into registry with the otherhole 4 and its corresponding' cone shaped delivery spout 33, all as willbe clear ironi Fig. 3 of the drawings. On the outside of the said disk20 there is located the scale beam on which is adjustab-iy secured theweight member 36 adapted to balance the weighing machine in a mannerwell known and also slidably mounted on said beam :35 is the adjustablebeam weight or weighing member 37, as will be clear from Figs. 1 and Itthus results that by suitably adjusting the weight 37 on the beam 35said beam through its scale 38 will register zero. This will be thecondition when there is no material in either of the cups 28 and 28 Onthe other hand, let us suppose that the valve 5 for example is pulledout until the end 9 of the lever 10 snaps into the notch S of said valveand thus holds the hole 7 in registry with the hole 4 Material will nowpass down through the hole 43, the cone shaped spout 32 and into one ofthe cups 28. In the meantime, the beam weight 37 has been-adjusted alongthe scale 38 oi the beam 35 until it reaches the point which indicatesthe number of pounds it is desired to sell the customer. Material willtherefore continue to flow through the delivery 32 until the beam 35 istipped. When this l'ippens the roller which is located in closeproximity to the toe 12 of the lever 10 will strike said toe and willcause said lever 10 to swing on its pivot 11 and thus bring its end 9out of the notch 8 whereupon the spring (3 will pull inwardly the valve5 and bring its hole 7 out of registry with the hole a and thus cut offthe supply of material being furnished to the cup 28. The disk 20 maynow be rotated by hand on the tube 21 as a axis, until the filled cupturns upside down to deliver the weighed material down through the spout17 into the bag or other receptacle, not shown, which is located undersaid spout. The relation of the parts is such that the rotation of thedisk and roller may continue until the other cup 28 is brought intoregistry with the other spout 33 ready for another operation through thepulling out of the valve 5. V

In the meantime the beam weight 37 being provided with a pointer 42,said pointer will have passed over the price scale 43 and will haveindicated the particular figure which corresponds to the cost of thenumber of pounds delivered to the said cup 28, al in manner well known.Said beam. weight 87 is provided with a duplicate pointer 42 whichco-act-s with the duplicate scale 44 which last mentioned pointerandscale will come uppermost when the other cup 28 registers with thedelivery and may thus be used for the next operation. lVhen said nextoperation takes place the roller 45 carried by the disk 20 will havepassed beyond the toe 13 of the lever 10 and will be in the properposition above said toe to trip said lever and to cause the end 9 ofsaidlever to disengage the notch 8 or" the valve 5 when it is desired tocut oil material passing through the hole 4. Of course, in order toweigh material passing through said hole a it is only necessary to pullout the valve 5 in the manner derribed in connection with the valve 5whereupon the operation of the scale mechanism will proceedautomatically as just disclosed. Said valves 5 and 5 may con-- venientlybe provided with the ring members dB to facilitate their operation, aswill be readily understood. It will now be clear that in order for themerchant to operate this machine it is only necessary for him to set thebeam weight 37 at the proper point to indicate the number of pounds heis to weigh, whereupon the pointers 4:2 or e3 will indicate on thescales 43 and 44: the costof that particular number of pounds, whereuponhe will pull out the valve 5 or 5, whereupon the ends 9 or 9 will holdthe corresponding valve open until the desired amount has flowed intoone of the cups 28 or 28 hen said amount has been thus delivered one ofthe rollers 40 (was will trip its corresponding lever, release itscorresponding valve, shut off the material, and the said material willbe dumped by hand through the delivery 17 into a receptacle not shown.In order that the disk 20 should be stopped after having turnedthroughan angle of 180, said disk carries the pins and 51 which takeagainst the stationary member 52. which is sharp pointed as indicatedand which therefore by registering with a line of the scale, shows whenthe cups 28 or 28 are in the proper positions.

It is obvious that those skilled in the art,

may vary the details of construction as well as the arrangement of partswithout departing from the spirit of the invention, and therefore it isnot desired to be limited to the above disclosure except as may berequired by the claims.

hat is claimed is 1. In an automatic weighing machine the combination ofa receptacle to hold the material to be weighed; a pivoted receiveradapted to turn through an angle of substantially one hundred and eightydegrees located beneath said receptacle; a disk provided with a scalebeam on which said receiver is mounted; a valve controlling the passageof material from said receptacle to said receiver; means moved by theturning of said receiver for controlling the flow of material into saidreceiver; and a spout into which said receiver empties in its turningmovements, substantially as described.

' receptacle to said receiver; means moved by the turning of saidreceiver for controlling the flow of material into said receiver; and aspout into which said receiver empties in its turning movements,substantially as described;

3. In a weighing machine the combination of a pair of bins for holdingthe material to be weighed; an oscillating pivoted disk; a scale beamcarried by said disk; a pair of oppositely disposed receive-rs carriedby and oscillating with said disk adapted to alternately receivematerial from said bins; valves for controlling the passage of materialfrom said bins to said receivers; and means controlled by theoscillations of said disk for controlling said valves, substantially asdescribed.

4:. In a weighing machine the combination of a pair of bins for holdingthe material to be weighed; an oscillating pivoted disk; a scale beamcarried by said disk; a pair of oppositely disposed receivers carried byand oscillating with said disk adapted to alternately receive materialfrom said bins; spring pressed valves for controlling the passage ofmaterial from said bins to said receivers; and means comprising pivotedlevers controlled by the oscillations of said disk for controlling saidvalves, substantially as described.

5. In a Weighing machine the combination of a pair of bins for holdingthe material to be weighed; an oscillating pivoted disk; a scale beamcarried by said disk; a pair of oppositely disposed receivers carried byand oscillating with said disk adapted to alternately receive materialfrom said bins; valves for controlling the passage of material from saidbins to said receivers; and

.means comprising rollers carried by said disk and pivoted leverscontrolled by the oscillations of said disk for controlling said valves,substantially as described.

6. In a weighing machine the combination of a pair of bins for holdingthe material to be weighed; an oscillating pivoted disk; a scale beamcarried by said disk; a beam weight carried by said beam; a price scalecarried by said disk with which said beam weight co-acts; a pair ofoppositely disposed receivers carried by and oscillating with said diskadapted to alternately receive material from saidbins; valves forcontrolling the passage of material from said bins to said receivers;and means comprising rollers and levers controlled by the oscillationsof said disk for controlling said valves, substantially as described.

In testimony whereof I aflix my signature.

EDGAR H. CRAIG.

